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      Re: No related articles are displayed - Which missing plugins?
      2 hours ago,

      Re: No related articles are displayed - Try installing more updates of this and missing plugins, will do better and help to resolve this. Bravia | Timeline
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      items tagged with rchelicopter

      2.4GHz RC transmitter are the future
      Written By: Administrator
      Section: RC helicopter

      Category: Electronic

      2007-01-14 18:24:12
      I am the proud owner of a Futaba Force field 9 (aka FF9) working in PCM mode 41.080Mhz. I came across some links saying that before 2011, I will be forced to throw it away or try to convert it in 35MHz (costs of conversion would out pass a new transmitter). In fact 41MHZ has been assigned to military in France, and is already forbidden in Switzerland... While Googling about more info on that subject, I found a lot of people presenting what must be the future of RC transmitter.

      Spektrum DX7 2.4GHz from www.spektrumrc.com

      In one sentence:
      2.4GHz, frequencies collision detection, 4.2Billions keys, 79 persons flying at the same time, bi-directional protocol, no more RF interferences (because only acting at 35Mhz)!
      The dream of all helicopter pilot. Currently only Spektrum is proposing a transmitter: the DX7

      The transmitter is also cheap: $300, compare to the Futaba 14Mz (2700 euro!!!)

      Their FAQ (frequently asked Questions) will better explain You the inside of that new technology.
      I will personally fly this year one more time on 41MHz (in France) except if there is already too much crash in my club due to interferences and wait for the DX9 (if a DX9 ever come out)


      3D moves and tricks
      Written By: Administrator
      Section: RC helicopter

      Category: Techniques

      2004-09-01 23:22:44
      nullMake sure you have the basics down before getting too ahead of yourself...

      90 deg. CCPM
      Written By: Administrator
      Section: FAQs

      Category: Kyosho Caliber 30 - Rotor Head

      2004-08-26 21:35:20

      90 deg. CCPM by CK_

      When in MMS mode, move the link from the blue ball to the red ball. Do this on both side of the swashplate.
      All credit to CK_

      "As for the 90 deg. CCPM, here's why I did it. I started with the stock 120 deg. CCPM with 3 9202s. If I banged the cyclic around quickly there was a lot of collective interaction. Try it for yourself. Wiggle the cyclic and watch the antirotation pin and jump up and down 1/8". The interaction happens because the servos are slow and the front swash input has to move twice as fast as the two in the rear for a fore/aft cyclic movement because the front ball is twice the distance from the center as the rear balls. If you move the cyclic faster than the servos can move then all three servos will move the same speed (the max speed of the servo) and collective interaction will happen because the front swash input is not moving at twice the speed of the other two. Curtis' 140 deg. or whatever it is on the Vigor CS puts the front ball exactly the same fore/aft distance from the center as the two rear balls. This means that all three servos move the same speed for a fore/aft cyclic input. No interaction.

      If you use 90 deg. then fore/aft cyclic only moves one servo. There can never be interaction if only one servo is moving. Lateral cyclic will move two servos at equal and opposite speeds. No chance for servos to "run out of speed" like with 120 deg. I still get a little bit of interaction but it's nothing like I had with the stock setup.

      Like I said before, I still don't know why 120 deg. is pretty much the standard and 90 deg. is rarely used when 120 deg. has much more collective interaction. Anyone got any ideas?
      "
      Great response by Dr.Ben

      "Your info about the 140 degree CCPM is entirely valid. One drawback of having the single ele input up from is that the swash is less stable. 120/140 d. CCPM surrounds the entire swash with support. There is also a control power component here. One reason the big gun CCPM models such as the Fury and Vigor CS can pull such abrupt maneuvers is the combined input of the servos - two for any roll command, THREE for pitch command, and three for a collective command. 90 degree CCPM takes two servos out of the power equation on the pitch axis. I realize the control power issue is of less consequence in a 30 sized bird, but you asked why manufacturers don't employ 90 CCPM more commonly.

      Much of the interaction you saw is a direct result of the somewhat slow analog 9202's (still a hell of a good servo) and not the 120 d. CCPM per se. If you go to a upper or lower collective command and input a hard over roll input, you will note a pretty good collective interaction because the servo arm on one of the two roll servos is approaching centerline and thus moving its pushrod further, while the other servo arm is retreating from centerline and moving the pushrod less. This differential phenomena is present in all CCPM models with rotary servos and is somewhat minimized by using servo wheels large enough to avoid movement a large number of degrees off centerline. A linear output servo is the only way to avoid the problem completely; we ain't there, yet <g>. The Caliber 30 system might work a bit better better if the bellcranks were designed to create less swash travel per unit of servo movement (meaning equal ball input points on both arms of the bellcrank), and then larger servo wheels were used to get the collective/cyclic range needed (less differential effect).

      Ben Minor
      "




      a remote starter plug
      Written By: Administrator
      Section: FAQs

      Category: Kyosho Caliber 30 - Fixing

      2004-08-26 22:12:18


      I recommend not to mount one! sometimes it is better to always remove the canopy...you can discover mechanical bug and do a quick check before each new flight.

      cheap way by elta68 better looking by CK_


      Acheter a l'étranger: Japon, USA...Prix scandaleux en france!
      Written By: Administrator
      Section: RC helicopter

      Category: Astuces (fr)

      2004-09-01 23:47:27
      Ce qui est dangeureux: c'est le port (40â € voire 70€ pour un kit hélico), les frais de douanes et de TVA: 25% de la valeur déclarée du paquet. Ce qui est bien: nouveautés 4 mois à 1 an avant les autres, toujours moins cher de 200€ ou plus sur un kit, 60% moins cher pour les piéces détachées.
      • Astuces: demander au vendeur de déclarer ou de conditionner le colis comme un cadeau (gift) et zou plus de frais de douanes!
      • Si le mode cadeau n'existe pas, demander lui de déballer tous les sachets individuelles et de n'en faire qu'un (en vrac dans un sachet sans réferences: bonne chance monsieur les douaniers! :-), si il vous demande une participation pour la manutention supplémentaire, accepter de bon coeur, mieux offrer lui la!
      • Demander au vendeur de spécifier un prix fantaisiste sur le paquet! ex pour 1000â €, spécifier 70€ vous ne serez alors que taxer sur 70€, mais pas rembourser en cas de perte du paquet, c'est vrai, mais c'est trés rare la perte de paquet surtout avec UPS, Fedex etc...
      • La période de noêl est propice: les douanes sont surchargés! c'est du vécu cela, noêl et nouvel an! c'est le moment.
      • Si vous êtes moins ambitieux, regarder en Europe! les différerences de prix sont des fois édifiantes.
      • Trichez! faites vous livrez dans un pays limitrophes aux droits de douanes moindres....chez grand mère en belgique, en allemagne, la suisse (7% de TVA et le droit de passer des valeurs sans déclaration jusqu'a 250€ par jour)
      • Oui c'est dégeu, oui le pauvre magasin du coin va mourir, oui encore des chomeurs...solutions? protectionnisme, fermer les frontieres etc... non sans blague, le gars au japon, il vit et fait des bénéfices aussi! le gars du coin qui nous a B.... pendant 20 ans, il a qu'a ce dire que il a mangé son pain blanc, ses meilleures années sont derrière lui!

      Exemple révoltant: la canopy du raptor 30: 48€ en france, $15.5 (+20€ de port) au japon, faites en venir 3, 2 seront presque gratuite! regroupez vous. Commander en quantité, regrouper vous dans votre club et voler sur la même machine!






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